Richard Freiherr von Krafft-Ebing was a German psychiatrist and author of the foundational work Psychopathia Sexualis (1886).
Karl Heinrich Ulrichs was a German lawyer, jurist, journalist, and writer who is regarded today as a pioneer of sexology and the modern gay rights movement. Ulrichs has been described as the "first gay man in world history."
Iwan Bloch, also known as Ivan Bloch, was a German dermatologist, and psychiatrist, psychoanalyst born in Delmenhorst, Grand Ducal Oldenburg, Germany, and often called the first sexologist.
Volkmar Sigusch was a German sexologist, physician and sociologist. From 1973 to 2006, he was the director of the Institut für Sexualwissenschaft at the clinic of Goethe University Frankfurt.
Martin Dannecker is a German sexologist and author.
Reimut Reiche is a German sociologist, sexologist, author and psychoanalyst.
Eberhard Schorsch was a German physician, psychotherapist, psychiatrist, author and sexologist.
The German city of Hamburg is the most populous city in the European Union which is not a national capital. The city contains an approximate 1.8 million people.
Dagmar Herzog is Distinguished Professor of History and the Daniel Rose Faculty Scholar at the Graduate Center, City University of New York.
Heinrich Kaan was a 19th-century physician known for his seminal contributions to early sexology. Different sources identify him as Ruthenian or as Russian. He was the personal physician to the Czar.
Hope Bridges Adams Lehmann was the first female general practitioner and gynecologist in Munich, Germany.
Ursula Apitzsch is a German political scientist and sociologist. Since 1993, she has been Professor of Political Science and Sociology at the University of Frankfurt. Her research fields are cultural analysis, biographical research, migration, ethnicity and gender.
Karin Flaake is a German sociologist and professor (retired) at the Carl von Ossietzky University Oldenburg. Her publications on the adolescence of young women and men are part of the literature of socio-psychologically oriented gender research. Another focus of her work is on the chances of changing gender relations in families.
Vera King is a German sociologist and social psychologist. She has been Professor of Sociology and Social Psychology at Goethe University Frankfurt and Director of the Sigmund Freud Institute in Frankfurt am Main since 2016.
Ulrike Tikvah Kissmann is a German sociologist.
Beate West-Leuer is a German professor, psychotherapist, consultant and coach.
Helmut Kentler was a German psychologist, sexologist, pedophile and professor of social education at the University of Hannover. From the late 1960s until the early 1990s, with the authorization and financial support of the Berlin Senate, Kentler placed neglected youth as foster children in the homes of single pedophile fathers with the ostensible purpose of resocializing them, while explicitly encouraging sexual contact between them. This project was later dubbed the "Kentler Experiment" or the "Kentler Project." Kentler later changed his mind on pedophiles having sexual contact with children, and described pedophilia as a "sexual disorder".
Ludwig Levy-Lenz was a German doctor of medicine and a sexual reformer, known for performing some of the first sex reassignment surgeries for patients of the Hirschfeld institute.
Horst-Eberhard Richter was a German psychoanalyst, psychosomatist and social philosopher. The author of numerous books was also regarded by many as the große alte Mann of the Federal German Peace movement.
Karl Vanselow was a German writer, publisher, photographer and Esperantist.
